<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        // let a1 = [1,[2,3]];
        // //解构
        // let [a,b] = a1
        // console.log(a,b);
        // let [a = 1,b=234]=[];
        // console.log(a,b);
        //vuex中会见到
        let [a,b,c] = [1,2,3,1];
        console.log(a,b,c);
    </script>
</body>
</html>